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Investment Properties - Summary of Increase (Decrease) in Fair Value (Detail) - TRY (₺)
₺ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of detailed information about investment property [line items]    
Opening balance ₺ 980  
Closing balance 15,425 ₺ 980
Net book amount 15,425 980
Cost [member]    
Disclosure of detailed information about investment property [line items]    
Opening balance 99,938 165,472
Transfer to property, plant and equipment 45,821 (64,594)
Disposal   (940)
Closing balance 145,759 99,938
Accumulated amortization [member]    
Disclosure of detailed information about investment property [line items]    
Opening balance (98,958) (119,202)
Transfer to property, plant and equipment (25,765) 22,366
Depreciation and impairment charges during the year (5,611) (2,337)
Disposal   215
Other 0 0
Closing balance ₺ (130,334) ₺ (98,958)